'''五子棋是一种双人对弈的纯策略型棋类游戏，它使用的棋盘一般由横纵各15条等距离、垂直交叉的平行线构成，这些横纵交叉形成的225个交叉点为对
弈双方的落子点。本案例要求编写代码，实现按用户要求打印指定大小的五子棋棋盘的程序（10×10的五子棋棋盘）┏ ┓┗ ┛┠ ┫┳ ┻ ╂'''
# plan1
l_t="┏"
r_t="┓"
l_d="┗"
r_d="┛"
top=" ┳ "
mid=" ╂ "
down=" ┻ "
left="┠"
right="┫"
print(l_t,top*13,r_t)
print(left,mid*13,right)
print(left,mid*13,right)
print(left,mid*13,right)
print(left,mid*13,right)
print(left,mid*13,right)
print(left,mid*13,right)
print(left,mid*13,right)
print(left,mid*13,right)
print(left,mid*13,right)
print(left,mid*13,right)
print(left,mid*13,right)
print(left,mid*13,right)
print(left,mid*13,right)
print(l_d,down*13,r_d)

# plan2
a=[]
for i in range(1,16):
    for j in range(1,16):

        if  i==1 and j==1 :
            print('┏ ',end='')
        elif i==1 and j==15:
            print(' ┓',end='\n')
        elif i==15 and j==1:
            print('┗ ',end='')
        elif i == 15 and j == 15:
            print(' ┛',end='')
        elif i != 1 and i !=15 and j ==1:
            print('┠ ',end='')
        elif i != 1 and i !=15 and j ==15:
            print(' ┫',end='\n')
        elif i == 1 and j != 1 and j !=15:
            print(' ┳ ',end='')
        elif i == 15 and j != 1 and j !=15:
            print(' ┻ ',end='')
        else:
            print(' ╂ ',end='')
print('*-'*20)
